From: Rong Zhang Date: Sun, 31 May 2026 15:45:22 +0000 (+0800) Subject: ALSA: usb-audio: Add quirk flag for Edifier MF200 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=635b5c6622f317a06c11ee050c2665c1085b68a0;p=thirdparty%2Fkernel%2Flinux.git ALSA: usb-audio: Add quirk flag for Edifier MF200 The UAC mixer of Edifier MF200 works fine except that its volume GET_CUR method is somehow stubbed and returns a constant value. Since commit 86aa1ea1f15c ("ALSA: usb-audio: Do not expose sticky mixers"), the sticky check considers the mixer to be sticky and unnecessarily disables the mixer. Add a quirk table entry matching VID/PID=0x2d99/0xa024 and applying the MIXER_SKIP_GET_CUR_VOL quirk flag, so that the mixer is usable again. Quirky device sample: usb 1-3.2: new full-speed USB device number 7 using xhci_hcd usb 1-3.2: New USB device found, idVendor=2d99, idProduct=a024, bcdDevice= 0.00 usb 1-3.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-3.2: Product: EDIFIER MF200 usb 1-3.2: Manufacturer: EDIFIER usb 1-3.2: SerialNumber: EDI00000X06 input: EDIFIER EDIFIER MF200 Consumer Control as /devices/pci0000:00/0000:00:02.1/0000:05:00.0/0000:06:0c.0/0000:0e:00.0/usb1/1-3/1-3.2/1-3.2:1.0/0003:2D99:A024.0003/input/input8 input: EDIFIER EDIFIER MF200 Mouse as /devices/pci0000:00/0000:00:02.1/0000:05:00.0/0000:06:0c.0/0000:0e:00.0/usb1/1-3/1-3.2/1-3.2:1.0/0003:2D99:A024.0003/input/input9 input: EDIFIER EDIFIER MF200 Keyboard as /devices/pci0000:00/0000:00:02.1/0000:05:00.0/0000:06:0c.0/0000:0e:00.0/usb1/1-3/1-3.2/1-3.2:1.0/0003:2D99:A024.0003/input/input10 input: EDIFIER EDIFIER MF200 as /devices/pci0000:00/0000:00:02.1/0000:05:00.0/0000:06:0c.0/0000:0e:00.0/usb1/1-3/1-3.2/1-3.2:1.0/0003:2D99:A024.0003/input/input11 input: EDIFIER EDIFIER MF200 as /devices/pci0000:00/0000:00:02.1/0000:05:00.0/0000:06:0c.0/0000:0e:00.0/usb1/1-3/1-3.2/1-3.2:1.0/0003:2D99:A024.0003/input/input12 hid-generic 0003:2D99:A024.0003: input,hiddev1,hidraw2: USB HID v1.10 Mouse [EDIFIER EDIFIER MF200] on usb-0000:0e:00.0-3.2/input0 usb 1-3.2: 9:1: sticky mixer values (-32768/-32513/1 => -32702), disabling Reported-by: Steve Smith Closes: https://lore.kernel.org/r/CAHLWS5FJCx66GQ-O10pu+nEudEo_QgQAM9vt76T7vT0zGPPC1g@mail.gmail.com Tested-by: Steve Smith Signed-off-by: Rong Zhang Signed-off-by: Takashi Iwai Link: https://patch.msgid.link/20260531-uac-quirk-get-cur-vol-v4-3-ede643dca151@rong.moe --- diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index 3adfda40d7cb5..27fd8621e8f57 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -2477,6 +2477,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = { QUIRK_FLAG_CTL_MSG_DELAY_1M), DEVICE_FLG(0x2d99, 0x0026, /* HECATE G2 GAMING HEADSET */ QUIRK_FLAG_MIXER_PLAYBACK_MIN_MUTE), + DEVICE_FLG(0x2d99, 0xa024, /* Edifier MF200 */ + QUIRK_FLAG_MIXER_GET_CUR_BROKEN), DEVICE_FLG(0x2fc6, 0xf06b, /* MOONDROP Moonriver2 Ti */ QUIRK_FLAG_CTL_MSG_DELAY), DEVICE_FLG(0x2fc6, 0xf0b7, /* iBasso DC07 Pro */